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Acianthera luteola.jpg
Acianthera luteola
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Epidendreae
Subtribe: Pleurothallidinae
Genus: Acianthera
Type species
Acianthera punctata
  • Cryptophoranthus Barb.Rodr.
  • Brenesia Schltr.
  • Geocalpa Brieger in F.R.R.Schlechter, invalid
  • Sarracenella Luer
  • Aberrantia Luer
  • Didactylus Luer
  • Unguella Luer
  • Arthrosia (Luer) Luer
  • Dondodia Luer
  • Ogygia Luer
Acianthera ochreata

Acianthera is a genus of orchids native to the tropical parts of the Western Hemisphere,[1] especially Brazil.[2] It was first described in 1842[3] but was not widely recognized until recently. Most of the species were formerly placed under Pleurothallis subgenus Acianthera. This splitting is a result of recent DNA sequencing.


In 2010, there were approximately 200 species asccepted in this genus.[2] As of 2022, Plants of the World Online accepts 296 species within Acianthera.[4]

Species include:


  1. ^ a b Kew World Checklist of Selected Plant Families
  2. ^ a b de Melo, M. C., Borba, E. L., & Paiva, E. A. S. (2010). Morphological and histological characterization of the osmophores and nectaries of four species of Acianthera (Orchidaceae: Pleurothallidinae). Plant Systematics and Evolution 286(3-4), 141-51.
  3. ^ Scheidweiler, Michael Joseph François. 1842. Allgemeine Gartenzeitung 10(37): 292
  4. ^ "Acianthera". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved July 5, 2022.

External links[edit]